reflectivity
N การ สะท้อน กลับ kan-sa-ton-kab
re flec tiv i ty |riˌflekˈtivətē, ˌrēˌflek -rəˌflɛkˈtɪvədi riˌflɛkˈtɪvədi | ▶noun Physics the property of reflecting light or radiation, esp. reflectance as measured independently of the thickness of a material.
re ¦flect |iv ¦ity |riːflɛkˈtɪvɪti | ▶noun Physics the property of reflecting light or radiation, especially reflectance as measured independently of the thickness of a material.